Forsmark 1 & 2 BWR Stability Benchmark

The purpose of this benchmark was to compare different time series
analysis methods that could be applied to the study of BWR stability.
It was a follow-up activity of the Ringhals
1 Stability Benchmark. While the Ringhals 1 Stability Benchmark
included both time domain and frequency domain calculation models to
predict stability parameters, the new activity was focused on the analysis
of time series data by means of noise analysis techniques in the time
domain.

A first meeting of participants in the benchmarks was held from 18-19 February
1999 at the Consejo de Seguridad Nuclear, Madrid. A total of 17 participants
from 8 countries and 13 organisations attended. It was agreed that the major
objective was met, namely to verify that different methods give the same
answer. The applicability and reliability of the different methods were
investigated. The six cases chosen for this study were relatively difficult
and were really addressing the limits of the methods. Use of a full set
of data could be the subject of a different investigation involving reactor
physics. The final report
was submitted to the NSC and the CSNI/PWG2 for review in the autumn 1999
and was published. For detailed information see NEA/NSC/DOC(99)9.

Contacts

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